The Constellation Palace brought him here to remove weeds, and now that the task is completed, this is probably the reward given by the Constellation Palace.
The Cumulated Points Ranking has rewards; the most basic reward is a chance to upgrade to Moon Jade in the Constellation Palace at any time. The higher the ranking, the longer the stay in the Constellation Palace, and if ranked among the top ten, there are additional special rewards.
Lu Ye missed the ranking battle and didn't earn any ranking, but if the green sea conch's effect continues to work, he could visit the Constellation Palace anytime in the future, and he'll be going to the main palace, unlike other cultivators who only enter a projection.
So, from this perspective, missing the ranking battle didn't cause him much loss.
Now the Constellation Palace has given a special reward again, and it seems like he's made a gain.
It's just unknown what use this small Constellation Palace has.
